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-rw-r--r--man2/nanosleep.23
1 files changed, 2 insertions, 1 deletions
diff --git a/man2/nanosleep.2 b/man2/nanosleep.2
index 63603971cd..969c346093 100644
--- a/man2/nanosleep.2
+++ b/man2/nanosleep.2
@@ -22,7 +22,8 @@ Standard C library
.nf
.B #include <time.h>
.PP
-.BI "int nanosleep(const struct timespec *" req ", struct timespec *" rem );
+.BI "int nanosleep(const struct timespec *" req ,
+.BI " struct timespec *_Nullable " rem );
.fi
.PP
.RS -4